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Acquisitions (Details) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2014 | Jun. 30, 2013 | Jun. 30, 2014 | Jun. 30, 2013
Business Combinations [Abstract] |  |  |  |
Net income (loss) attributable to MDC Partners Inc. | $ 16,470 | $ 9,816 | $ 7,624 | $ (33,342)
Transfers to (from) the noncontrolling Interest: |  |  |  |
Increase (decrease) in MDC Partners Inc. paid in capital for purchase of equity interests in excess of Redeemable Noncontrolling Interests and Noncontrolling Interests | (1,440) | 10,875 | (6,238) | 9,816
Net transfers to (from) noncontrolling interest | (1,440) | 10,875 | (6,238) | 9,816
Change from Net income (loss) attributable to MDC Partners Inc. and transfers to non controlling interest | $ 15,030 | $ 20,691 | $ 1,386 | $ (23,526)

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